Peter Charles pcharles at
Wed Sep 27 21:56:07 EST 1995

On 26 Sep 1995, Dr. Richard Myers wrote:

> Can anyone tell me the biological basis for the old "rabbit" test for 
> pregnancy?  rlm967f at
Dr. Myers,

If I remember correctly, the levels of chorionic gonadotropin (hGH) in
a pregnant woman's urine are high enough that, if injected into a rabbit,
will cause characteristic changes in the rabbit's uterine or ovarian 
tissues.  I believe the test was known as the "Friedman test."

In any case, the "rabbit died" irrespective of the outcome of the test!

Peter Charles, PhD
Department of Pathology (Neuropathology)
Albert Einstein College of Medicine

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